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Compass Therapeutics, Inc.

CMPX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001738021

In the last 90 days, Compass Therapeutics, Inc. insiders filed 1 open-market purchase and 0 sales; 215 institutions reported holding it in 13F filings for Q2 2026, worth $363.4M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Compass Therapeutics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
215
+17 vs. Q1 2026
Shares held
165.7M
−7.90M (−4.6%) vs. Q1 2026
Total value
$363.4M
−$557.7M (−60.5%) vs. Q1 2026
New holders
64
86 more added
Sold out
47
44 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 215 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 37 institutionsQ1 2022: 34 institutionsQ2 2022: 34 institutionsQ3 2022: 38 institutionsQ4 2022: 55 institutionsQ1 2023: 73 institutionsQ2 2023: 73 institutionsQ3 2023: 76 institutionsQ4 2023: 77 institutionsQ1 2024: 78 institutionsQ2 2024: 82 institutionsQ3 2024: 79 institutionsQ4 2024: 92 institutionsQ1 2025: 108 institutionsQ2 2025: 103 institutionsQ3 2025: 125 institutionsQ4 2025: 173 institutionsQ1 2026: 201 institutionsQ2 2026: 215 institutions
Value heldQ2 2026: $363.4M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $201.6MQ1 2022: $85.4MQ2 2022: $163.9MQ3 2022: $153.7MQ4 2022: $401.4MQ1 2023: $285.1MQ2 2023: $287.7MQ3 2023: $176.7MQ4 2023: $134.8MQ1 2024: $187.9MQ2 2024: $93.5MQ3 2024: $169.7MQ4 2024: $147.0MQ1 2025: $206.1MQ2 2025: $281.9MQ3 2025: $535.7MQ4 2025: $881.5MQ1 2026: $921.3MQ2 2026: $363.4M
Institutions holding CMPX and their total value by quarter
QuarterHoldersValue
Q2 2026215$363.4M
Q1 2026201$921.3M
Q4 2025173$881.5M
Q3 2025125$535.7M
Q2 2025103$281.9M
Q1 2025108$206.1M
Q4 202492$147.0M
Q3 202479$169.7M
Q2 202482$93.5M
Q1 202478$187.9M
Q4 202377$134.8M
Q3 202376$176.7M
Q2 202373$287.7M
Q1 202373$285.1M
Q4 202255$401.4M
Q3 202238$153.7M
Q2 202234$163.9M
Q1 202234$85.4M
Q4 202137$201.6M
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q1 2026.

Institutions holding CMPX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
ExodusPoint Capital Management, LP67,478$147.8K0.00%+23,448+53.3%Added
Vanguard Global Advisers, LLC61,158$133.9K0.00%−33,760−35.6%Reduced
Wealthcare Advisory Partners LLC60,962$133.5K0.00%+60,962New
Quantbot Technologies LP60,826$133.2K0.01%+60,106+8,348.1%Added
Jane Street Group, LLC59,955$131.3K0.00%+59,955New
Simplex Trading, LLC57,790$126.6K0.00%+31,939+123.6%Added
Jupiter Topco LLC55,600$121.5K0.00%+55,600New
Colony Group, LLC53,121$116.3K0.00%+38,829+271.7%Added
Russell Investments Group, Ltd.50,505$110.6K0.00%+39,605+363.3%Added
Barclays PLC50,397$110.4K0.00%−739,644−93.6%Reduced
Sequoia Financial Advisors, LLC44,980$98.5K0.00%+29,445+189.5%Added
Zurcher Kantonalbank (Zurich Cantonalbank)43,914$96.2K0.00%00.0%Unchanged
State of Wisconsin Investment Board43,579$95.4K0.00%−156,700−78.2%Reduced
Axq Capital, LP42,118$92.2K0.01%+17,060+68.1%Added
Advisor Group Holdings, Inc.41,965$91.9K0.00%+27,287+185.9%Added
Simplicity Wealth,LLC36,480$79.9K0.00%+8,130+28.7%Added
BNP Paribas Arbitrage, SA35,631$78.0K0.00%−137−0.4%Reduced
Police & Firemen's Retirement System of New Jersey35,503$77.8K0.00%00.0%Unchanged
Vanguard Investments Australia, Ltd.33,422$73.2K0.00%00.0%Unchanged
Captrust Financial Advisors32,609$71.4K0.00%+10,933+50.4%Added
Virginia Retirement Systems Et Al32,300$70.7K0.00%+32,300New
Independent Advisor Alliance31,587$69.2K0.00%+13,693+76.5%Added
LPL Financial LLC31,470$68.9K0.00%−4,000−11.3%Reduced
New York State Common Retirement Fund30,407$66.6K0.00%00.0%Unchanged
Betterment LLC30,143$66.0K0.00%+30,143New
Two Sigma Securities, LLC29,451$64.5K0.01%+29,451New
Florida Financial Advisors, LLC28,586$62.6K0.01%+28,586New
Strategic Wealth Partners, Ltd.28,575$62.6K0.00%+11,750+69.8%Added
Intech Investment Management LLC27,910$61.1K0.00%−1,893−6.4%Reduced
State of New Jersey Common Pension Fund D27,659$60.6K0.00%−10,454−27.4%Reduced
Voya Investment Management LLC27,069$59.3K0.00%−348,251−92.8%Reduced
E Fund Management Co., Ltd.26,808$58.7K0.00%+2,186+8.9%Added
Engineers Gate Manager LP26,335$57.7K0.00%−45,418−63.3%Reduced
Walleye Trading LLC25,000$54.8K0.00%00.0%Unchanged
Winton Group Ltd24,900$54.5K0.00%+24,900New
KLP Kapitalforvaltning AS24,600$53.9K0.00%00.0%Unchanged
Merit Financial Group, LLC23,674$51.8K0.00%+23,674New
Arizona State Retirement System23,604$51.7K0.00%−7,028−22.9%Reduced
nVerses Capital, LLC23,330$51.1K0.08%+23,330New
Graham Capital Management, L.P.22,857$50.1K0.00%−694−2.9%Reduced
Independent Financial Group, LLC22,779$49.9K0.00%00.0%Unchanged
Prudential Financial Inc21,720$47.6K0.00%−472,580−95.6%Reduced
SEI Investments Co21,552$47.2K0.00%+21,552New
Arkadios Wealth Advisors21,464$47.0K0.00%+21,464New
ACT Advisors, LLC.20,613$45.1K0.02%+20,613New
Neuberger Berman Group LLC19,792$43.3K0.00%+3,439+21.0%Added
Apollon Wealth Management, LLC19,687$43.1K0.00%+19,687New
Wealthcare Capital Partners, LLC19,654$43.0K0.02%+19,654New
Caitong International Asset Management Co., Ltd19,301$42.3K0.01%+18,582+2,584.4%Added
Welch & Forbes LLC19,000$41.6K0.00%00.0%Unchanged
Brighton Jones LLC18,317$40.1K0.00%+18,317New
M&T Bank Corp18,198$39.9K0.00%+3,155+21.0%Added
Ikarian Capital, LLC18,000$39.4K0.01%00.0%Unchanged
ProShare Advisors LLC17,167$37.6K0.00%−1,536−8.2%Reduced
McAdam, LLC16,494$36.1K0.00%+16,494New
Virtu Financial LLC16,394$36.0K0.00%−26,672−61.9%Reduced
Jupiter Asset Management Ltd16,270$35.6K0.00%+16,270New
Chicago Partners Investment Group LLC16,257$34.5K0.00%+16,257New
Victory Capital Management Inc14,806$32.4K0.00%+1,077+7.8%Added
Sig Brokerage, LP14,496$31.7K0.01%00.0%Unchanged
Pictet Asset Management Holding SA14,432$31.6K0.00%00.0%Unchanged
Centiva Capital, LP14,432$31.6K0.00%+14,432New
Stifel Financial Corp14,211$31.1K0.00%−13,286−48.3%Reduced
MAI Capital Management14,189$31.1K0.00%+13,575+2,210.9%Added
StoneX Group Inc.15,000$31.0K0.00%+15,000New
State of Wyoming14,065$30.8K0.00%+14,065New
HB Wealth Management, LLC13,058$28.6K0.00%+13,058New
Belpointe Asset Management LLC13,025$28.5K0.00%+13,025New
Fortis Capital Advisors, LLC13,025$28.5K0.00%+13,025New
Xponance, Inc.12,550$27.5K0.00%+714+6.0%Added
North Star Investment Management Corp.12,500$27.4K0.00%00.0%Unchanged
Blair William & Co12,186$26.7K0.00%−18,574−60.4%Reduced
SummitTX Capital, L.P.12,000$26.3K0.00%+12,000New
Crewe Advisors LLC11,696$25.6K0.00%+11,696New
The PNC Financial Services Group, Inc.10,939$24.0K0.00%−99−0.9%Reduced
Ameritas Investment Partners, Inc.10,621$23.3K0.00%00.0%Unchanged
Brevan Howard Capital Management LP10,202$22.3K0.00%+20.0%Added
Teacher Retirement System of Texas10,167$22.3K0.00%−4,297−29.7%Reduced
Allworth Financial LP10,084$22.1K0.00%+9,492+1,603.4%Added
Prestige Wealth Management Group LLC7,750$17.0K0.00%+7,750New
Federated Hermes, Inc.7,522$16.5K0.00%+7,522New
Tower Research Capital LLC (TRC)7,474$16.4K0.00%−15,778−67.9%Reduced
Operose Advisors LLC6,274$13.7K0.00%+6,274New
VSM Wealth Advisory, LLC6,100$13.4K0.00%+3,100+103.3%Added
SRS Capital Advisors, Inc.5,725$12.5K0.00%+5,725New
MCF Advisors LLC5,540$12.1K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC5,456$11.9K0.00%+208+4.0%Added
Rockefeller Capital Management L.P.4,814$10.5K0.00%−5,368−52.7%Reduced
Royal Bank of Canada4,048$9.00K0.00%+4,042+67,366.7%Added
Federation des caisses Desjardins du Quebec4,000$8.76K0.00%+3,000+300.0%Added
Pacer Advisors, Inc.3,175$7.00K0.00%+3,175New
Silver Grove Financial Group, Inc.3,004$6.58K0.00%+3,004New
Sterling Capital Management LLC2,642$5.79K0.00%+198+8.1%Added
True Wealth Design, LLC1,557$3.41K0.00%+1,557New
Essential Partners LLC1,516$3.32K0.00%+1,507+16,744.4%Added
Fortitude Family Office, LLC1,481$3.24K0.00%−434−22.7%Reduced
Farther Finance Advisors, LLC1,264$2.75K0.00%+609+93.0%Added
EverSource Wealth Advisors, LLC1,114$2.44K0.00%−5,028−81.9%Reduced
SJS Investment Consulting Inc.812$1.78K0.00%+785+2,907.4%Added
Clearstead Advisors, LLC783$1.72K0.00%+783New